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212380e3 | 1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * channel.c: Controls channels. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
83294285 | 24 | * $Id: channel.c 3580 2007-11-07 23:45:14Z jilles $ |
212380e3 | 25 | */ |
26 | ||
27 | #include "stdinc.h" | |
212380e3 | 28 | #include "channel.h" |
fba62b01 | 29 | #include "chmode.h" |
212380e3 | 30 | #include "client.h" |
31 | #include "common.h" | |
32 | #include "hash.h" | |
33 | #include "hook.h" | |
13ae2f4b | 34 | #include "match.h" |
212380e3 | 35 | #include "ircd.h" |
36 | #include "numeric.h" | |
37 | #include "s_serv.h" /* captab */ | |
38 | #include "s_user.h" | |
39 | #include "send.h" | |
40 | #include "whowas.h" | |
41 | #include "s_conf.h" /* ConfigFileEntry, ConfigChannel */ | |
42 | #include "s_newconf.h" | |
d3455e2c | 43 | #include "logger.h" |
3472ff3f | 44 | #include "packet.h" |
6f659342 | 45 | #include "irc_dictionary.h" |
212380e3 | 46 | |
9813daca | 47 | struct config_channel_entry ConfigChannel; |
1a218aaf | 48 | rb_dlink_list global_channel_list; |
5475a932 VY |
49 | static rb_bh *channel_heap; |
50 | static rb_bh *ban_heap; | |
51 | static rb_bh *topic_heap; | |
52 | static rb_bh *member_heap; | |
53 | ||
212380e3 | 54 | static int channel_capabs[] = { CAP_EX, CAP_IE, |
55 | CAP_SERVICE, | |
56 | CAP_TS6 | |
57 | }; | |
58 | ||
59 | #define NCHCAPS (sizeof(channel_capabs)/sizeof(int)) | |
60 | #define NCHCAP_COMBOS (1 << NCHCAPS) | |
61 | ||
62 | static struct ChCapCombo chcap_combos[NCHCAP_COMBOS]; | |
63 | ||
64 | static void free_topic(struct Channel *chptr); | |
65 | ||
66 | static int h_can_join; | |
67b90240 JH |
67 | static int h_can_create_channel; |
68 | static int h_channel_join; | |
212380e3 | 69 | |
70 | /* init_channels() | |
71 | * | |
72 | * input - | |
73 | * output - | |
74 | * side effects - initialises the various blockheaps | |
75 | */ | |
76 | void | |
77 | init_channels(void) | |
78 | { | |
dd9be678 WP |
79 | channel_heap = rb_bh_create(sizeof(struct Channel), CHANNEL_HEAP_SIZE, "channel_heap"); |
80 | ban_heap = rb_bh_create(sizeof(struct Ban), BAN_HEAP_SIZE, "ban_heap"); | |
81 | topic_heap = rb_bh_create(TOPICLEN + 1 + USERHOST_REPLYLEN, TOPIC_HEAP_SIZE, "topic_heap"); | |
82 | member_heap = rb_bh_create(sizeof(struct membership), MEMBER_HEAP_SIZE, "member_heap"); | |
212380e3 | 83 | |
84 | h_can_join = register_hook("can_join"); | |
67b90240 JH |
85 | h_channel_join = register_hook("channel_join"); |
86 | h_can_create_channel = register_hook("can_create_channel"); | |
212380e3 | 87 | } |
88 | ||
89 | /* | |
90 | * allocate_channel - Allocates a channel | |
91 | */ | |
92 | struct Channel * | |
93 | allocate_channel(const char *chname) | |
94 | { | |
95 | struct Channel *chptr; | |
0b370fcc | 96 | struct Dictionary *metadata; |
6e9b4415 | 97 | chptr = rb_bh_alloc(channel_heap); |
62d28946 | 98 | chptr->chname = rb_strdup(chname); |
6f659342 | 99 | |
0b370fcc G |
100 | metadata = irc_dictionary_create(irccmp); |
101 | chptr->metadata = metadata; | |
212380e3 | 102 | return (chptr); |
103 | } | |
104 | ||
105 | void | |
106 | free_channel(struct Channel *chptr) | |
107 | { | |
8bced6dc | 108 | channel_metadata_clear(chptr); |
90a3c35b | 109 | rb_free(chptr->chname); |
6e9b4415 | 110 | rb_bh_free(channel_heap, chptr); |
212380e3 | 111 | } |
112 | ||
113 | struct Ban * | |
114 | allocate_ban(const char *banstr, const char *who) | |
115 | { | |
116 | struct Ban *bptr; | |
6e9b4415 | 117 | bptr = rb_bh_alloc(ban_heap); |
62d28946 VY |
118 | bptr->banstr = rb_strdup(banstr); |
119 | bptr->who = rb_strdup(who); | |
212380e3 | 120 | |
121 | return (bptr); | |
122 | } | |
123 | ||
124 | void | |
125 | free_ban(struct Ban *bptr) | |
126 | { | |
90a3c35b VY |
127 | rb_free(bptr->banstr); |
128 | rb_free(bptr->who); | |
6e9b4415 | 129 | rb_bh_free(ban_heap, bptr); |
212380e3 | 130 | } |
131 | ||
132 | ||
133 | /* find_channel_membership() | |
134 | * | |
135 | * input - channel to find them in, client to find | |
136 | * output - membership of client in channel, else NULL | |
137 | * side effects - | |
138 | */ | |
139 | struct membership * | |
140 | find_channel_membership(struct Channel *chptr, struct Client *client_p) | |
141 | { | |
142 | struct membership *msptr; | |
af81d5a0 | 143 | rb_dlink_node *ptr; |
212380e3 | 144 | |
145 | if(!IsClient(client_p)) | |
146 | return NULL; | |
147 | ||
148 | /* Pick the most efficient list to use to be nice to things like | |
149 | * CHANSERV which could be in a large number of channels | |
150 | */ | |
af81d5a0 | 151 | if(rb_dlink_list_length(&chptr->members) < rb_dlink_list_length(&client_p->user->channel)) |
212380e3 | 152 | { |
8e69bb4e | 153 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 | 154 | { |
155 | msptr = ptr->data; | |
156 | ||
157 | if(msptr->client_p == client_p) | |
158 | return msptr; | |
159 | } | |
160 | } | |
161 | else | |
162 | { | |
8e69bb4e | 163 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 | 164 | { |
165 | msptr = ptr->data; | |
166 | ||
167 | if(msptr->chptr == chptr) | |
168 | return msptr; | |
169 | } | |
170 | } | |
171 | ||
172 | return NULL; | |
173 | } | |
174 | ||
175 | /* find_channel_status() | |
176 | * | |
177 | * input - membership to get status for, whether we can combine flags | |
178 | * output - flags of user on channel | |
179 | * side effects - | |
180 | */ | |
181 | const char * | |
182 | find_channel_status(struct membership *msptr, int combine) | |
183 | { | |
b8643345 | 184 | static char buffer[5]; |
212380e3 | 185 | char *p; |
186 | ||
187 | p = buffer; | |
188 | ||
b8643345 G |
189 | if(is_owner(msptr)) |
190 | { | |
191 | if(!combine) | |
192 | return "!"; | |
193 | *p++ = '!'; | |
194 | } | |
195 | ||
212380e3 | 196 | if(is_chanop(msptr)) |
197 | { | |
198 | if(!combine) | |
199 | return "@"; | |
200 | *p++ = '@'; | |
201 | } | |
202 | ||
b8643345 G |
203 | if(is_halfop(msptr)) |
204 | { | |
205 | if(!combine) | |
206 | return "%"; | |
207 | *p++ = '%'; | |
208 | } | |
209 | ||
212380e3 | 210 | if(is_voiced(msptr)) |
211 | *p++ = '+'; | |
212 | ||
213 | *p = '\0'; | |
214 | return buffer; | |
215 | } | |
216 | ||
40c6b59b G |
217 | /* is_halfop() |
218 | * | |
219 | * input - membership to check for halfops | |
220 | * output - 1 if the user is halfopped, 0 if the user is not or halfop | |
221 | * is disabled. | |
222 | * side effects - | |
223 | * | |
224 | */ | |
225 | int | |
226 | is_halfop(struct membership *msptr) | |
227 | { | |
40c6b59b G |
228 | if(!ConfigChannel.use_halfop) |
229 | return 0; | |
82f8e812 G |
230 | if(is_chmode_h(msptr)) |
231 | return 1; | |
40c6b59b G |
232 | else |
233 | return 0; | |
234 | } | |
235 | ||
236 | /* is_owner() | |
237 | * | |
238 | * input - membership to check for owner | |
239 | * output - 1 if the user is an owner, 0 if the user is not or owner | |
240 | * is disabled. | |
241 | * side effects - | |
242 | * | |
243 | */ | |
244 | int | |
245 | is_owner(struct membership *msptr) | |
246 | { | |
40c6b59b G |
247 | if(!ConfigChannel.use_owner) |
248 | return 0; | |
82f8e812 G |
249 | if(is_chmode_a(msptr)) |
250 | return 1; | |
40c6b59b G |
251 | else |
252 | return 0; | |
253 | } | |
254 | ||
d1c7eccf G |
255 | /* is_any_op() |
256 | * | |
257 | * input - membership to check for ops | |
258 | * output - 1 if the user is op, halfop, or owner, 0 elsewise | |
259 | * side effects - | |
260 | */ | |
d1c7eccf G |
261 | int |
262 | is_any_op(struct membership *msptr) | |
263 | { | |
40c6b59b | 264 | if(is_chanop(msptr) || is_halfop(msptr) || is_owner(msptr)) |
d1c7eccf G |
265 | return 1; |
266 | else | |
267 | return 0; | |
268 | } | |
269 | ||
bbc69733 G |
270 | /* is_chanop_voiced() |
271 | * | |
272 | * input - memebership to check for status | |
273 | * output - 1 if the user is op, halfop, owner, or voice, 0 elsewise | |
274 | * side effects - | |
275 | */ | |
276 | int | |
277 | is_chanop_voiced(struct membership *msptr) | |
278 | { | |
40c6b59b | 279 | if(is_chanop(msptr) || is_voiced(msptr) || is_halfop(msptr) || is_owner(msptr)) |
bbc69733 G |
280 | return 1; |
281 | else | |
282 | return 0; | |
283 | } | |
284 | ||
b3b2ed97 G |
285 | /* can_kick_deop() |
286 | * | |
287 | * input - two memeberships | |
288 | * output - 1 if the first memebership can kick/deop the second, 0 elsewise | |
289 | * side effects - | |
290 | */ | |
291 | int | |
292 | can_kick_deop(struct membership *source, struct membership *target) | |
293 | { | |
40c6b59b | 294 | if(is_chanop(source) && !is_owner(target)) |
b3b2ed97 | 295 | return 1; |
40c6b59b G |
296 | else if(is_halfop(source) && !is_any_op(target)) |
297 | return 1; | |
298 | else if(is_owner(source)) | |
299 | return 1; | |
300 | ||
301 | return 0; | |
b3b2ed97 G |
302 | } |
303 | ||
212380e3 | 304 | /* add_user_to_channel() |
305 | * | |
306 | * input - channel to add client to, client to add, channel flags | |
307 | * output - | |
308 | * side effects - user is added to channel | |
309 | */ | |
310 | void | |
311 | add_user_to_channel(struct Channel *chptr, struct Client *client_p, int flags) | |
312 | { | |
313 | struct membership *msptr; | |
314 | ||
315 | s_assert(client_p->user != NULL); | |
316 | if(client_p->user == NULL) | |
317 | return; | |
318 | ||
6e9b4415 | 319 | msptr = rb_bh_alloc(member_heap); |
212380e3 | 320 | |
321 | msptr->chptr = chptr; | |
322 | msptr->client_p = client_p; | |
323 | msptr->flags = flags; | |
324 | ||
af81d5a0 WP |
325 | rb_dlinkAdd(msptr, &msptr->usernode, &client_p->user->channel); |
326 | rb_dlinkAdd(msptr, &msptr->channode, &chptr->members); | |
212380e3 | 327 | |
328 | if(MyClient(client_p)) | |
af81d5a0 | 329 | rb_dlinkAdd(msptr, &msptr->locchannode, &chptr->locmembers); |
212380e3 | 330 | } |
331 | ||
332 | /* remove_user_from_channel() | |
333 | * | |
334 | * input - membership pointer to remove from channel | |
335 | * output - | |
336 | * side effects - membership (thus user) is removed from channel | |
337 | */ | |
338 | void | |
339 | remove_user_from_channel(struct membership *msptr) | |
340 | { | |
341 | struct Client *client_p; | |
342 | struct Channel *chptr; | |
343 | s_assert(msptr != NULL); | |
344 | if(msptr == NULL) | |
345 | return; | |
346 | ||
347 | client_p = msptr->client_p; | |
348 | chptr = msptr->chptr; | |
349 | ||
af81d5a0 WP |
350 | rb_dlinkDelete(&msptr->usernode, &client_p->user->channel); |
351 | rb_dlinkDelete(&msptr->channode, &chptr->members); | |
212380e3 | 352 | |
353 | if(client_p->servptr == &me) | |
af81d5a0 | 354 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); |
212380e3 | 355 | |
af81d5a0 | 356 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) |
212380e3 | 357 | destroy_channel(chptr); |
358 | ||
6e9b4415 | 359 | rb_bh_free(member_heap, msptr); |
212380e3 | 360 | |
361 | return; | |
362 | } | |
363 | ||
364 | /* remove_user_from_channels() | |
365 | * | |
366 | * input - user to remove from all channels | |
367 | * output - | |
368 | * side effects - user is removed from all channels | |
369 | */ | |
370 | void | |
371 | remove_user_from_channels(struct Client *client_p) | |
372 | { | |
373 | struct Channel *chptr; | |
374 | struct membership *msptr; | |
af81d5a0 | 375 | rb_dlink_node *ptr; |
90a3c35b | 376 | rb_dlink_node *next_ptr; |
212380e3 | 377 | |
378 | if(client_p == NULL) | |
379 | return; | |
380 | ||
90a3c35b | 381 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->user->channel.head) |
212380e3 | 382 | { |
383 | msptr = ptr->data; | |
384 | chptr = msptr->chptr; | |
385 | ||
af81d5a0 | 386 | rb_dlinkDelete(&msptr->channode, &chptr->members); |
212380e3 | 387 | |
388 | if(client_p->servptr == &me) | |
af81d5a0 | 389 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); |
212380e3 | 390 | |
af81d5a0 | 391 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) |
212380e3 | 392 | destroy_channel(chptr); |
393 | ||
6e9b4415 | 394 | rb_bh_free(member_heap, msptr); |
212380e3 | 395 | } |
396 | ||
397 | client_p->user->channel.head = client_p->user->channel.tail = NULL; | |
398 | client_p->user->channel.length = 0; | |
399 | } | |
400 | ||
401 | /* invalidate_bancache_user() | |
402 | * | |
403 | * input - user to invalidate ban cache for | |
404 | * output - | |
405 | * side effects - ban cache is invalidated for all memberships of that user | |
406 | * to be used after a nick change | |
407 | */ | |
408 | void | |
409 | invalidate_bancache_user(struct Client *client_p) | |
410 | { | |
411 | struct membership *msptr; | |
af81d5a0 | 412 | rb_dlink_node *ptr; |
212380e3 | 413 | |
414 | if(client_p == NULL) | |
415 | return; | |
416 | ||
8e69bb4e | 417 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 | 418 | { |
419 | msptr = ptr->data; | |
420 | msptr->bants = 0; | |
421 | msptr->flags &= ~CHFL_BANNED; | |
422 | } | |
423 | } | |
424 | ||
425 | /* check_channel_name() | |
426 | * | |
427 | * input - channel name | |
428 | * output - 1 if valid channel name, else 0 | |
429 | * side effects - | |
430 | */ | |
431 | int | |
432 | check_channel_name(const char *name) | |
433 | { | |
434 | s_assert(name != NULL); | |
435 | if(name == NULL) | |
436 | return 0; | |
437 | ||
438 | for (; *name; ++name) | |
439 | { | |
440 | if(!IsChanChar(*name)) | |
441 | return 0; | |
442 | } | |
443 | ||
444 | return 1; | |
445 | } | |
446 | ||
447 | /* free_channel_list() | |
448 | * | |
af81d5a0 | 449 | * input - rb_dlink list to free |
212380e3 | 450 | * output - |
451 | * side effects - list of b/e/I modes is cleared | |
452 | */ | |
453 | void | |
af81d5a0 | 454 | free_channel_list(rb_dlink_list * list) |
212380e3 | 455 | { |
af81d5a0 | 456 | rb_dlink_node *ptr; |
90a3c35b | 457 | rb_dlink_node *next_ptr; |
212380e3 | 458 | struct Ban *actualBan; |
459 | ||
90a3c35b | 460 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 | 461 | { |
462 | actualBan = ptr->data; | |
463 | free_ban(actualBan); | |
464 | } | |
465 | ||
466 | list->head = list->tail = NULL; | |
467 | list->length = 0; | |
468 | } | |
469 | ||
470 | /* destroy_channel() | |
471 | * | |
472 | * input - channel to destroy | |
473 | * output - | |
474 | * side effects - channel is obliterated | |
475 | */ | |
476 | void | |
477 | destroy_channel(struct Channel *chptr) | |
478 | { | |
90a3c35b | 479 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 480 | |
90a3c35b | 481 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) |
212380e3 | 482 | { |
483 | del_invite(chptr, ptr->data); | |
484 | } | |
485 | ||
486 | /* free all bans/exceptions/denies */ | |
487 | free_channel_list(&chptr->banlist); | |
488 | free_channel_list(&chptr->exceptlist); | |
489 | free_channel_list(&chptr->invexlist); | |
fea1ad52 | 490 | free_channel_list(&chptr->quietlist); |
212380e3 | 491 | |
492 | /* Free the topic */ | |
493 | free_topic(chptr); | |
494 | ||
af81d5a0 | 495 | rb_dlinkDelete(&chptr->node, &global_channel_list); |
212380e3 | 496 | del_from_channel_hash(chptr->chname, chptr); |
497 | free_channel(chptr); | |
498 | } | |
499 | ||
500 | /* channel_pub_or_secret() | |
501 | * | |
502 | * input - channel | |
503 | * output - "=" if public, "@" if secret, else "*" | |
504 | * side effects - | |
505 | */ | |
506 | static const char * | |
507 | channel_pub_or_secret(struct Channel *chptr) | |
508 | { | |
509 | if(PubChannel(chptr)) | |
510 | return ("="); | |
511 | else if(SecretChannel(chptr)) | |
512 | return ("@"); | |
513 | return ("*"); | |
514 | } | |
515 | ||
516 | /* channel_member_names() | |
517 | * | |
518 | * input - channel to list, client to list to, show endofnames | |
519 | * output - | |
520 | * side effects - client is given list of users on channel | |
521 | */ | |
522 | void | |
523 | channel_member_names(struct Channel *chptr, struct Client *client_p, int show_eon) | |
524 | { | |
525 | struct membership *msptr; | |
526 | struct Client *target_p; | |
af81d5a0 | 527 | rb_dlink_node *ptr; |
212380e3 | 528 | char lbuf[BUFSIZE]; |
529 | char *t; | |
530 | int mlen; | |
531 | int tlen; | |
532 | int cur_len; | |
533 | int is_member; | |
534 | int stack = IsCapable(client_p, CLICAP_MULTI_PREFIX); | |
535 | ||
536 | if(ShowChannel(client_p, chptr)) | |
537 | { | |
538 | is_member = IsMember(client_p, chptr); | |
539 | ||
38e6acdd | 540 | cur_len = mlen = rb_sprintf(lbuf, form_str(RPL_NAMREPLY), |
212380e3 | 541 | me.name, client_p->name, |
542 | channel_pub_or_secret(chptr), chptr->chname); | |
543 | ||
544 | t = lbuf + cur_len; | |
545 | ||
8e69bb4e | 546 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 | 547 | { |
548 | msptr = ptr->data; | |
549 | target_p = msptr->client_p; | |
550 | ||
551 | if(IsInvisible(target_p) && !is_member) | |
552 | continue; | |
553 | ||
554 | /* space, possible "@+" prefix */ | |
555 | if(cur_len + strlen(target_p->name) + 3 >= BUFSIZE - 3) | |
556 | { | |
557 | *(t - 1) = '\0'; | |
558 | sendto_one(client_p, "%s", lbuf); | |
559 | cur_len = mlen; | |
560 | t = lbuf + mlen; | |
561 | } | |
562 | ||
38e6acdd | 563 | tlen = rb_sprintf(t, "%s%s ", find_channel_status(msptr, stack), |
212380e3 | 564 | target_p->name); |
565 | ||
566 | cur_len += tlen; | |
567 | t += tlen; | |
568 | } | |
569 | ||
570 | /* The old behaviour here was to always output our buffer, | |
571 | * even if there are no clients we can show. This happens | |
572 | * when a client does "NAMES" with no parameters, and all | |
573 | * the clients on a -sp channel are +i. I dont see a good | |
574 | * reason for keeping that behaviour, as it just wastes | |
575 | * bandwidth. --anfl | |
576 | */ | |
577 | if(cur_len != mlen) | |
578 | { | |
579 | *(t - 1) = '\0'; | |
580 | sendto_one(client_p, "%s", lbuf); | |
581 | } | |
582 | } | |
583 | ||
584 | if(show_eon) | |
585 | sendto_one(client_p, form_str(RPL_ENDOFNAMES), | |
586 | me.name, client_p->name, chptr->chname); | |
587 | } | |
588 | ||
589 | /* del_invite() | |
590 | * | |
591 | * input - channel to remove invite from, client to remove | |
592 | * output - | |
593 | * side effects - user is removed from invite list, if exists | |
594 | */ | |
595 | void | |
596 | del_invite(struct Channel *chptr, struct Client *who) | |
597 | { | |
af81d5a0 WP |
598 | rb_dlinkFindDestroy(who, &chptr->invites); |
599 | rb_dlinkFindDestroy(chptr, &who->user->invited); | |
212380e3 | 600 | } |
601 | ||
602 | /* is_banned() | |
603 | * | |
604 | * input - channel to check bans for, user to check bans against | |
605 | * optional prebuilt buffers | |
606 | * output - 1 if banned, else 0 | |
607 | * side effects - | |
608 | */ | |
609 | int | |
610 | is_banned(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
611 | const char *s, const char *s2) | |
612 | { | |
613 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
614 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
615 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
616 | char *s3 = NULL; | |
af81d5a0 | 617 | rb_dlink_node *ptr; |
212380e3 | 618 | struct Ban *actualBan = NULL; |
619 | struct Ban *actualExcept = NULL; | |
620 | ||
621 | if(!MyClient(who)) | |
622 | return 0; | |
623 | ||
624 | /* if the buffers havent been built, do it here */ | |
625 | if(s == NULL) | |
626 | { | |
38e6acdd WP |
627 | rb_sprintf(src_host, "%s!%s@%s", who->name, who->username, who->host); |
628 | rb_sprintf(src_iphost, "%s!%s@%s", who->name, who->username, who->sockhost); | |
212380e3 | 629 | |
630 | s = src_host; | |
631 | s2 = src_iphost; | |
632 | } | |
633 | if(who->localClient->mangledhost != NULL) | |
634 | { | |
635 | /* if host mangling mode enabled, also check their real host */ | |
636 | if(!strcmp(who->host, who->localClient->mangledhost)) | |
637 | { | |
38e6acdd | 638 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->orighost); |
212380e3 | 639 | s3 = src_althost; |
640 | } | |
641 | /* if host mangling mode not enabled and no other spoof, | |
642 | * also check the mangled form of their host */ | |
643 | else if (!IsDynSpoof(who)) | |
644 | { | |
38e6acdd | 645 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->localClient->mangledhost); |
212380e3 | 646 | s3 = src_althost; |
647 | } | |
648 | } | |
649 | ||
8e69bb4e | 650 | RB_DLINK_FOREACH(ptr, chptr->banlist.head) |
212380e3 | 651 | { |
652 | actualBan = ptr->data; | |
653 | if(match(actualBan->banstr, s) || | |
654 | match(actualBan->banstr, s2) || | |
655 | match_cidr(actualBan->banstr, s2) || | |
656 | match_extban(actualBan->banstr, who, chptr, CHFL_BAN) || | |
657 | (s3 != NULL && match(actualBan->banstr, s3))) | |
658 | break; | |
659 | else | |
660 | actualBan = NULL; | |
661 | } | |
662 | ||
663 | if((actualBan != NULL) && ConfigChannel.use_except) | |
664 | { | |
8e69bb4e | 665 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) |
212380e3 | 666 | { |
667 | actualExcept = ptr->data; | |
668 | ||
669 | /* theyre exempted.. */ | |
670 | if(match(actualExcept->banstr, s) || | |
671 | match(actualExcept->banstr, s2) || | |
672 | match_cidr(actualExcept->banstr, s2) || | |
673 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION) || | |
674 | (s3 != NULL && match(actualExcept->banstr, s3))) | |
675 | { | |
676 | /* cache the fact theyre not banned */ | |
677 | if(msptr != NULL) | |
678 | { | |
679 | msptr->bants = chptr->bants; | |
680 | msptr->flags &= ~CHFL_BANNED; | |
681 | } | |
682 | ||
683 | return CHFL_EXCEPTION; | |
684 | } | |
685 | } | |
686 | } | |
687 | ||
688 | /* cache the banned/not banned status */ | |
689 | if(msptr != NULL) | |
690 | { | |
691 | msptr->bants = chptr->bants; | |
692 | ||
693 | if(actualBan != NULL) | |
694 | { | |
695 | msptr->flags |= CHFL_BANNED; | |
696 | return CHFL_BAN; | |
697 | } | |
698 | else | |
699 | { | |
700 | msptr->flags &= ~CHFL_BANNED; | |
701 | return 0; | |
702 | } | |
703 | } | |
704 | ||
705 | return ((actualBan ? CHFL_BAN : 0)); | |
706 | } | |
707 | ||
708 | /* is_quieted() | |
709 | * | |
710 | * input - channel to check bans for, user to check bans against | |
711 | * optional prebuilt buffers | |
712 | * output - 1 if banned, else 0 | |
713 | * side effects - | |
714 | */ | |
715 | int | |
716 | is_quieted(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
717 | const char *s, const char *s2) | |
718 | { | |
719 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
720 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
721 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
722 | char *s3 = NULL; | |
af81d5a0 | 723 | rb_dlink_node *ptr; |
212380e3 | 724 | struct Ban *actualBan = NULL; |
725 | struct Ban *actualExcept = NULL; | |
726 | ||
727 | if(!MyClient(who)) | |
728 | return 0; | |
729 | ||
730 | /* if the buffers havent been built, do it here */ | |
731 | if(s == NULL) | |
732 | { | |
38e6acdd WP |
733 | rb_sprintf(src_host, "%s!%s@%s", who->name, who->username, who->host); |
734 | rb_sprintf(src_iphost, "%s!%s@%s", who->name, who->username, who->sockhost); | |
212380e3 | 735 | |
736 | s = src_host; | |
737 | s2 = src_iphost; | |
738 | } | |
739 | if(who->localClient->mangledhost != NULL) | |
740 | { | |
741 | /* if host mangling mode enabled, also check their real host */ | |
742 | if(!strcmp(who->host, who->localClient->mangledhost)) | |
743 | { | |
38e6acdd | 744 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->orighost); |
212380e3 | 745 | s3 = src_althost; |
746 | } | |
747 | /* if host mangling mode not enabled and no other spoof, | |
748 | * also check the mangled form of their host */ | |
749 | else if (!IsDynSpoof(who)) | |
750 | { | |
38e6acdd | 751 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->localClient->mangledhost); |
212380e3 | 752 | s3 = src_althost; |
753 | } | |
754 | } | |
755 | ||
8e69bb4e | 756 | RB_DLINK_FOREACH(ptr, chptr->quietlist.head) |
212380e3 | 757 | { |
758 | actualBan = ptr->data; | |
759 | if(match(actualBan->banstr, s) || | |
760 | match(actualBan->banstr, s2) || | |
761 | match_cidr(actualBan->banstr, s2) || | |
762 | match_extban(actualBan->banstr, who, chptr, CHFL_QUIET) || | |
763 | (s3 != NULL && match(actualBan->banstr, s3))) | |
764 | break; | |
765 | else | |
766 | actualBan = NULL; | |
767 | } | |
768 | ||
769 | if((actualBan != NULL) && ConfigChannel.use_except) | |
770 | { | |
8e69bb4e | 771 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) |
212380e3 | 772 | { |
773 | actualExcept = ptr->data; | |
774 | ||
775 | /* theyre exempted.. */ | |
776 | if(match(actualExcept->banstr, s) || | |
777 | match(actualExcept->banstr, s2) || | |
778 | match_cidr(actualExcept->banstr, s2) || | |
779 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION) || | |
780 | (s3 != NULL && match(actualExcept->banstr, s3))) | |
781 | { | |
782 | /* cache the fact theyre not banned */ | |
783 | if(msptr != NULL) | |
784 | { | |
785 | msptr->bants = chptr->bants; | |
786 | msptr->flags &= ~CHFL_BANNED; | |
787 | } | |
788 | ||
789 | return CHFL_EXCEPTION; | |
790 | } | |
791 | } | |
792 | } | |
793 | ||
794 | /* cache the banned/not banned status */ | |
795 | if(msptr != NULL) | |
796 | { | |
797 | msptr->bants = chptr->bants; | |
798 | ||
799 | if(actualBan != NULL) | |
800 | { | |
801 | msptr->flags |= CHFL_BANNED; | |
802 | return CHFL_BAN; | |
803 | } | |
804 | else | |
805 | { | |
806 | msptr->flags &= ~CHFL_BANNED; | |
807 | return 0; | |
808 | } | |
809 | } | |
810 | ||
811 | return ((actualBan ? CHFL_BAN : 0)); | |
812 | } | |
813 | ||
814 | /* can_join() | |
815 | * | |
816 | * input - client to check, channel to check for, key | |
817 | * output - reason for not being able to join, else 0 | |
818 | * side effects - | |
819 | */ | |
820 | int | |
821 | can_join(struct Client *source_p, struct Channel *chptr, char *key) | |
822 | { | |
af81d5a0 WP |
823 | rb_dlink_node *invite = NULL; |
824 | rb_dlink_node *ptr; | |
212380e3 | 825 | struct Ban *invex = NULL; |
826 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
827 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
828 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
829 | int use_althost = 0; | |
1ebf4db4 | 830 | int i = 0; |
212380e3 | 831 | hook_data_channel moduledata; |
0b370fcc | 832 | struct Metadata *md; |
104becbf | 833 | struct DictionaryIter iter; |
212380e3 | 834 | |
835 | s_assert(source_p->localClient != NULL); | |
836 | ||
13a467bb JH |
837 | if(IsOverride(source_p)) |
838 | return 0; | |
839 | ||
38e6acdd WP |
840 | rb_sprintf(src_host, "%s!%s@%s", source_p->name, source_p->username, source_p->host); |
841 | rb_sprintf(src_iphost, "%s!%s@%s", source_p->name, source_p->username, source_p->sockhost); | |
212380e3 | 842 | if(source_p->localClient->mangledhost != NULL) |
843 | { | |
844 | /* if host mangling mode enabled, also check their real host */ | |
845 | if(!strcmp(source_p->host, source_p->localClient->mangledhost)) | |
846 | { | |
38e6acdd | 847 | rb_sprintf(src_althost, "%s!%s@%s", source_p->name, source_p->username, source_p->orighost); |
212380e3 | 848 | use_althost = 1; |
849 | } | |
850 | /* if host mangling mode not enabled and no other spoof, | |
851 | * also check the mangled form of their host */ | |
852 | else if (!IsDynSpoof(source_p)) | |
853 | { | |
38e6acdd | 854 | rb_sprintf(src_althost, "%s!%s@%s", source_p->name, source_p->username, source_p->localClient->mangledhost); |
212380e3 | 855 | use_althost = 1; |
856 | } | |
857 | } | |
858 | ||
859 | if((is_banned(chptr, source_p, NULL, src_host, src_iphost)) == CHFL_BAN) | |
860 | return (ERR_BANNEDFROMCHAN); | |
861 | ||
d3b90aaa | 862 | DICTIONARY_FOREACH(md, &iter, chptr->metadata) |
104becbf | 863 | { |
d3b90aaa | 864 | if(!strcmp(md->name, "KICKNOREJOIN") && !strcmp(md->value, source_p->id) && (md->timevalue + ConfigChannel.kick_no_rejoin_time > rb_current_time())) |
104becbf | 865 | return ERR_KICKNOREJOIN; |
d3b90aaa G |
866 | /* cleanup any stale KICKNOREJOIN metadata we find while we're at it */ |
867 | if(!strcmp(md->name, "KICKNOREJOIN") && !(md->timevalue + ConfigChannel.kick_no_rejoin_time > rb_current_time())) | |
868 | channel_metadata_delete(chptr, md->name, 0); | |
104becbf G |
869 | } |
870 | ||
212380e3 | 871 | if(chptr->mode.mode & MODE_INVITEONLY) |
872 | { | |
8e69bb4e | 873 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) |
212380e3 | 874 | { |
1ebf4db4 | 875 | if(invite->data == chptr) |
212380e3 | 876 | break; |
877 | } | |
1ebf4db4 | 878 | if(invite == NULL) |
212380e3 | 879 | { |
880 | if(!ConfigChannel.use_invex) | |
881 | return (ERR_INVITEONLYCHAN); | |
8e69bb4e | 882 | RB_DLINK_FOREACH(ptr, chptr->invexlist.head) |
212380e3 | 883 | { |
884 | invex = ptr->data; | |
885 | if(match(invex->banstr, src_host) | |
886 | || match(invex->banstr, src_iphost) | |
887 | || match_cidr(invex->banstr, src_iphost) | |
888 | || match_extban(invex->banstr, source_p, chptr, CHFL_INVEX) | |
889 | || (use_althost && match(invex->banstr, src_althost))) | |
890 | break; | |
891 | } | |
892 | if(ptr == NULL) | |
893 | return (ERR_INVITEONLYCHAN); | |
894 | } | |
895 | } | |
896 | ||
897 | if(*chptr->mode.key && (EmptyString(key) || irccmp(chptr->mode.key, key))) | |
898 | return (ERR_BADCHANNELKEY); | |
899 | ||
900 | if(chptr->mode.limit && | |
af81d5a0 | 901 | rb_dlink_list_length(&chptr->members) >= (unsigned long) chptr->mode.limit) |
1ebf4db4 | 902 | i = ERR_CHANNELISFULL; |
212380e3 | 903 | if(chptr->mode.mode & MODE_REGONLY && EmptyString(source_p->user->suser)) |
1ebf4db4 | 904 | i = ERR_NEEDREGGEDNICK; |
212380e3 | 905 | /* join throttling stuff --nenolod */ |
1ebf4db4 | 906 | else if(chptr->mode.join_num > 0 && chptr->mode.join_time > 0) |
212380e3 | 907 | { |
9f6bbe3c | 908 | if ((rb_current_time() - chptr->join_delta <= |
212380e3 | 909 | chptr->mode.join_time) && (chptr->join_count >= |
910 | chptr->mode.join_num)) | |
1ebf4db4 | 911 | i = ERR_THROTTLE; |
912 | } | |
913 | ||
914 | /* allow /invite to override +l/+r/+j also -- jilles */ | |
915 | if (i != 0 && invite == NULL) | |
916 | { | |
8e69bb4e | 917 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) |
1ebf4db4 | 918 | { |
919 | if(invite->data == chptr) | |
920 | break; | |
921 | } | |
922 | if (invite == NULL) | |
923 | return i; | |
212380e3 | 924 | } |
925 | ||
926 | moduledata.client = source_p; | |
927 | moduledata.chptr = chptr; | |
928 | moduledata.approved = 0; | |
929 | ||
930 | call_hook(h_can_join, &moduledata); | |
931 | ||
932 | return moduledata.approved; | |
933 | } | |
934 | ||
935 | /* can_send() | |
936 | * | |
937 | * input - user to check in channel, membership pointer | |
938 | * output - whether can explicitly send or not, else CAN_SEND_NONOP | |
939 | * side effects - | |
940 | */ | |
941 | int | |
942 | can_send(struct Channel *chptr, struct Client *source_p, struct membership *msptr) | |
943 | { | |
944 | if(IsServer(source_p) || IsService(source_p)) | |
945 | return CAN_SEND_OPV; | |
946 | ||
947 | if(MyClient(source_p) && hash_find_resv(chptr->chname) && | |
948 | !IsOper(source_p) && !IsExemptResv(source_p)) | |
949 | return CAN_SEND_NO; | |
950 | ||
951 | if(msptr == NULL) | |
952 | { | |
953 | msptr = find_channel_membership(chptr, source_p); | |
954 | ||
955 | if(msptr == NULL) | |
956 | { | |
957 | /* if its +m or +n and theyre not in the channel, | |
958 | * they cant send. we dont check bans here because | |
959 | * theres no possibility of caching them --fl | |
960 | */ | |
961 | if(chptr->mode.mode & MODE_NOPRIVMSGS || chptr->mode.mode & MODE_MODERATED) | |
962 | return CAN_SEND_NO; | |
963 | else | |
964 | return CAN_SEND_NONOP; | |
965 | } | |
966 | } | |
967 | ||
968 | if(is_chanop_voiced(msptr)) | |
969 | return CAN_SEND_OPV; | |
970 | ||
13a467bb JH |
971 | if(IsOverride(source_p)) |
972 | return CAN_SEND_NONOP; | |
973 | ||
212380e3 | 974 | if(chptr->mode.mode & MODE_MODERATED) |
975 | return CAN_SEND_NO; | |
976 | ||
977 | if(MyClient(source_p)) | |
978 | { | |
979 | /* cached can_send */ | |
980 | if(msptr->bants == chptr->bants) | |
981 | { | |
982 | if(can_send_banned(msptr)) | |
983 | return CAN_SEND_NO; | |
984 | } | |
985 | else if(is_banned(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN | |
986 | || is_quieted(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN) | |
987 | return CAN_SEND_NO; | |
988 | } | |
989 | ||
990 | return CAN_SEND_NONOP; | |
991 | } | |
992 | ||
993 | /* find_bannickchange_channel() | |
994 | * Input: client to check | |
995 | * Output: channel preventing nick change | |
996 | */ | |
997 | struct Channel * | |
998 | find_bannickchange_channel(struct Client *client_p) | |
999 | { | |
1000 | struct Channel *chptr; | |
1001 | struct membership *msptr; | |
af81d5a0 | 1002 | rb_dlink_node *ptr; |
212380e3 | 1003 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; |
1004 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
1005 | ||
13a467bb | 1006 | if (!MyClient(client_p) || IsOverride(client_p)) |
212380e3 | 1007 | return NULL; |
1008 | ||
38e6acdd WP |
1009 | rb_sprintf(src_host, "%s!%s@%s", client_p->name, client_p->username, client_p->host); |
1010 | rb_sprintf(src_iphost, "%s!%s@%s", client_p->name, client_p->username, client_p->sockhost); | |
212380e3 | 1011 | |
8e69bb4e | 1012 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 | 1013 | { |
1014 | msptr = ptr->data; | |
1015 | chptr = msptr->chptr; | |
1016 | if (is_chanop_voiced(msptr)) | |
1017 | continue; | |
1018 | /* cached can_send */ | |
1019 | if (msptr->bants == chptr->bants) | |
1020 | { | |
1021 | if (can_send_banned(msptr)) | |
1022 | return chptr; | |
1023 | } | |
1024 | else if (is_banned(chptr, client_p, msptr, src_host, src_iphost) == CHFL_BAN | |
1025 | || is_quieted(chptr, client_p, msptr, src_host, src_iphost) == CHFL_BAN) | |
1026 | return chptr; | |
1027 | } | |
1028 | return NULL; | |
1029 | } | |
1030 | ||
afd4834b G |
1031 | /* find_nonickchange_channel() |
1032 | * Input: client to check | |
1033 | * Output: channel preventing nick change | |
1034 | */ | |
1035 | struct Channel * | |
1036 | find_nonickchange_channel(struct Client *client_p) | |
1037 | { | |
1038 | struct Channel *chptr; | |
1039 | struct membership *msptr; | |
1040 | rb_dlink_node *ptr; | |
1041 | ||
1042 | if (!MyClient(client_p)) | |
1043 | return NULL; | |
1044 | ||
1045 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) | |
1046 | { | |
1047 | msptr = ptr->data; | |
1048 | chptr = msptr->chptr; | |
5ad94b50 | 1049 | if (chptr->mode.mode & MODE_NONICK && (!ConfigChannel.exempt_cmode_N || !is_any_op(msptr))) |
afd4834b G |
1050 | return chptr; |
1051 | } | |
1052 | return NULL; | |
1053 | } | |
1054 | ||
212380e3 | 1055 | /* void check_spambot_warning(struct Client *source_p) |
1056 | * Input: Client to check, channel name or NULL if this is a part. | |
1057 | * Output: none | |
1058 | * Side-effects: Updates the client's oper_warn_count_down, warns the | |
1059 | * IRC operators if necessary, and updates join_leave_countdown as | |
1060 | * needed. | |
1061 | */ | |
1062 | void | |
1063 | check_spambot_warning(struct Client *source_p, const char *name) | |
1064 | { | |
1065 | int t_delta; | |
1066 | int decrement_count; | |
1067 | if((GlobalSetOptions.spam_num && | |
1068 | (source_p->localClient->join_leave_count >= GlobalSetOptions.spam_num))) | |
1069 | { | |
1070 | if(source_p->localClient->oper_warn_count_down > 0) | |
1071 | source_p->localClient->oper_warn_count_down--; | |
1072 | else | |
1073 | source_p->localClient->oper_warn_count_down = 0; | |
05d8a68c JT |
1074 | if(source_p->localClient->oper_warn_count_down == 0 && |
1075 | name != NULL) | |
212380e3 | 1076 | { |
1077 | /* Its already known as a possible spambot */ | |
05d8a68c JT |
1078 | sendto_realops_snomask(SNO_BOTS, L_NETWIDE, |
1079 | "User %s (%s@%s) trying to join %s is a possible spambot", | |
1080 | source_p->name, | |
1081 | source_p->username, source_p->orighost, name); | |
212380e3 | 1082 | source_p->localClient->oper_warn_count_down = OPER_SPAM_COUNTDOWN; |
1083 | } | |
1084 | } | |
1085 | else | |
1086 | { | |
1087 | if((t_delta = | |
9f6bbe3c | 1088 | (rb_current_time() - source_p->localClient->last_leave_time)) > |
212380e3 | 1089 | JOIN_LEAVE_COUNT_EXPIRE_TIME) |
1090 | { | |
1091 | decrement_count = (t_delta / JOIN_LEAVE_COUNT_EXPIRE_TIME); | |
b6698246 JT |
1092 | if(name != NULL) |
1093 | ; | |
1094 | else if(decrement_count > source_p->localClient->join_leave_count) | |
212380e3 | 1095 | source_p->localClient->join_leave_count = 0; |
1096 | else | |
1097 | source_p->localClient->join_leave_count -= decrement_count; | |
1098 | } | |
1099 | else | |
1100 | { | |
9f6bbe3c | 1101 | if((rb_current_time() - |
212380e3 | 1102 | (source_p->localClient->last_join_time)) < GlobalSetOptions.spam_time) |
1103 | { | |
1104 | /* oh, its a possible spambot */ | |
1105 | source_p->localClient->join_leave_count++; | |
1106 | } | |
1107 | } | |
1108 | if(name != NULL) | |
9f6bbe3c | 1109 | source_p->localClient->last_join_time = rb_current_time(); |
212380e3 | 1110 | else |
9f6bbe3c | 1111 | source_p->localClient->last_leave_time = rb_current_time(); |
212380e3 | 1112 | } |
1113 | } | |
1114 | ||
1115 | /* check_splitmode() | |
1116 | * | |
1117 | * input - | |
1118 | * output - | |
1119 | * side effects - compares usercount and servercount against their split | |
1120 | * values and adjusts splitmode accordingly | |
1121 | */ | |
1122 | void | |
1123 | check_splitmode(void *unused) | |
1124 | { | |
1125 | if(splitchecking && (ConfigChannel.no_join_on_split || ConfigChannel.no_create_on_split)) | |
1126 | { | |
1127 | /* not split, we're being asked to check now because someone | |
1128 | * has left | |
1129 | */ | |
1130 | if(!splitmode) | |
1131 | { | |
1132 | if(eob_count < split_servers || Count.total < split_users) | |
1133 | { | |
1134 | splitmode = 1; | |
1135 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1136 | "Network split, activating splitmode"); | |
dd9be678 | 1137 | check_splitmode_ev = rb_event_addish("check_splitmode", check_splitmode, NULL, 2); |
212380e3 | 1138 | } |
1139 | } | |
1140 | /* in splitmode, check whether its finished */ | |
1141 | else if(eob_count >= split_servers && Count.total >= split_users) | |
1142 | { | |
1143 | splitmode = 0; | |
1144 | ||
1145 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1146 | "Network rejoined, deactivating splitmode"); | |
1147 | ||
dd9be678 | 1148 | rb_event_delete(check_splitmode_ev); |
0ae330b4 | 1149 | check_splitmode_ev = NULL; |
212380e3 | 1150 | } |
1151 | } | |
1152 | } | |
1153 | ||
1154 | ||
1155 | /* allocate_topic() | |
1156 | * | |
1157 | * input - channel to allocate topic for | |
1158 | * output - 1 on success, else 0 | |
1159 | * side effects - channel gets a topic allocated | |
1160 | */ | |
1161 | static void | |
1162 | allocate_topic(struct Channel *chptr) | |
1163 | { | |
1164 | void *ptr; | |
1165 | ||
1166 | if(chptr == NULL) | |
1167 | return; | |
1168 | ||
6e9b4415 | 1169 | ptr = rb_bh_alloc(topic_heap); |
212380e3 | 1170 | |
1171 | /* Basically we allocate one large block for the topic and | |
1172 | * the topic info. We then split it up into two and shove it | |
1173 | * in the chptr | |
1174 | */ | |
1175 | chptr->topic = ptr; | |
1176 | chptr->topic_info = (char *) ptr + TOPICLEN + 1; | |
1177 | *chptr->topic = '\0'; | |
1178 | *chptr->topic_info = '\0'; | |
1179 | } | |
1180 | ||
1181 | /* free_topic() | |
1182 | * | |
1183 | * input - channel which has topic to free | |
1184 | * output - | |
1185 | * side effects - channels topic is free'd | |
1186 | */ | |
1187 | static void | |
1188 | free_topic(struct Channel *chptr) | |
1189 | { | |
1190 | void *ptr; | |
1191 | ||
1192 | if(chptr == NULL || chptr->topic == NULL) | |
1193 | return; | |
1194 | ||
1195 | /* This is safe for now - If you change allocate_topic you | |
1196 | * MUST change this as well | |
1197 | */ | |
1198 | ptr = chptr->topic; | |
6e9b4415 | 1199 | rb_bh_free(topic_heap, ptr); |
212380e3 | 1200 | chptr->topic = NULL; |
1201 | chptr->topic_info = NULL; | |
1202 | } | |
1203 | ||
1204 | /* set_channel_topic() | |
1205 | * | |
1206 | * input - channel, topic to set, topic info and topic ts | |
1207 | * output - | |
1208 | * side effects - channels topic, topic info and TS are set. | |
1209 | */ | |
1210 | void | |
1211 | set_channel_topic(struct Channel *chptr, const char *topic, const char *topic_info, time_t topicts) | |
1212 | { | |
1213 | if(strlen(topic) > 0) | |
1214 | { | |
1215 | if(chptr->topic == NULL) | |
1216 | allocate_topic(chptr); | |
907468c4 VY |
1217 | rb_strlcpy(chptr->topic, topic, TOPICLEN + 1); |
1218 | rb_strlcpy(chptr->topic_info, topic_info, USERHOST_REPLYLEN); | |
212380e3 | 1219 | chptr->topic_time = topicts; |
1220 | } | |
1221 | else | |
1222 | { | |
1223 | if(chptr->topic != NULL) | |
1224 | free_topic(chptr); | |
1225 | chptr->topic_time = 0; | |
1226 | } | |
1227 | } | |
1228 | ||
c279d43b G |
1229 | /* has_common_channel() |
1230 | * | |
1231 | * input - pointer to client | |
1232 | * - pointer to another client | |
1233 | * output - 1 if the two have a channel in common, 0 elsewise | |
1234 | * side effects - none | |
1235 | */ | |
1236 | int | |
1237 | has_common_channel(struct Client *client1, struct Client *client2) | |
1238 | { | |
1239 | rb_dlink_node *ptr; | |
1240 | ||
1241 | RB_DLINK_FOREACH(ptr, client1->user->channel.head) | |
1242 | { | |
1243 | if(IsMember(client2, ((struct membership *)ptr->data)->chptr)) | |
1244 | return 1; | |
1245 | } | |
99c78094 | 1246 | return 0; |
c279d43b G |
1247 | } |
1248 | ||
212380e3 | 1249 | /* channel_modes() |
1250 | * | |
1251 | * inputs - pointer to channel | |
1252 | * - pointer to client | |
f1e35c19 | 1253 | * output - string with simple modes |
1254 | * side effects - result from previous calls overwritten | |
212380e3 | 1255 | * |
1256 | * Stolen from ShadowIRCd 4 --nenolod | |
1257 | */ | |
1258 | const char * | |
1259 | channel_modes(struct Channel *chptr, struct Client *client_p) | |
1260 | { | |
1261 | int i; | |
1262 | char buf1[BUFSIZE]; | |
1263 | char buf2[BUFSIZE]; | |
1264 | static char final[BUFSIZE]; | |
1265 | char *mbuf = buf1; | |
1266 | char *pbuf = buf2; | |
1267 | ||
1268 | *mbuf++ = '+'; | |
1269 | *pbuf = '\0'; | |
1270 | ||
75818939 | 1271 | for (i = 0; i < 256; i++) |
1cdd8fdf | 1272 | { |
565f4362 | 1273 | if(chmode_table[i].set_func == chm_hidden && !IsOper(client_p) && IsClient(client_p)) |
1cdd8fdf | 1274 | continue; |
75818939 VY |
1275 | if(chptr->mode.mode & chmode_flags[i]) |
1276 | *mbuf++ = i; | |
1cdd8fdf | 1277 | } |
212380e3 | 1278 | |
1279 | if(chptr->mode.limit) | |
1280 | { | |
1281 | *mbuf++ = 'l'; | |
1282 | ||
f1e35c19 | 1283 | if(!IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1284 | pbuf += rb_sprintf(pbuf, " %d", chptr->mode.limit); |
212380e3 | 1285 | } |
1286 | ||
1287 | if(*chptr->mode.key) | |
1288 | { | |
1289 | *mbuf++ = 'k'; | |
1290 | ||
f1e35c19 | 1291 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1292 | pbuf += rb_sprintf(pbuf, " %s", chptr->mode.key); |
212380e3 | 1293 | } |
1294 | ||
1295 | if(chptr->mode.join_num) | |
1296 | { | |
1297 | *mbuf++ = 'j'; | |
1298 | ||
f1e35c19 | 1299 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1300 | pbuf += rb_sprintf(pbuf, " %d:%d", chptr->mode.join_num, |
212380e3 | 1301 | chptr->mode.join_time); |
1302 | } | |
1303 | ||
f1e35c19 | 1304 | if(*chptr->mode.forward && (ConfigChannel.use_forward || !IsClient(client_p))) |
212380e3 | 1305 | { |
1306 | *mbuf++ = 'f'; | |
1307 | ||
f1e35c19 | 1308 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1309 | pbuf += rb_sprintf(pbuf, " %s", chptr->mode.forward); |
212380e3 | 1310 | } |
1311 | ||
1312 | *mbuf = '\0'; | |
1313 | ||
907468c4 | 1314 | rb_strlcpy(final, buf1, sizeof final); |
a64c5173 | 1315 | rb_strlcat(final, buf2, sizeof final); |
212380e3 | 1316 | return final; |
1317 | } | |
1318 | ||
1319 | /* Now lets do some stuff to keep track of what combinations of | |
1320 | * servers exist... | |
1321 | * Note that the number of combinations doubles each time you add | |
1322 | * something to this list. Each one is only quick if no servers use that | |
1323 | * combination, but if the numbers get too high here MODE will get too | |
1324 | * slow. I suggest if you get more than 7 here, you consider getting rid | |
1325 | * of some and merging or something. If it wasn't for irc+cs we would | |
1326 | * probably not even need to bother about most of these, but unfortunately | |
1327 | * we do. -A1kmm | |
1328 | */ | |
1329 | ||
1330 | /* void init_chcap_usage_counts(void) | |
1331 | * | |
1332 | * Inputs - none | |
1333 | * Output - none | |
1334 | * Side-effects - Initialises the usage counts to zero. Fills in the | |
1335 | * chcap_yes and chcap_no combination tables. | |
1336 | */ | |
1337 | void | |
1338 | init_chcap_usage_counts(void) | |
1339 | { | |
1340 | unsigned long m, c, y, n; | |
1341 | ||
1342 | memset(chcap_combos, 0, sizeof(chcap_combos)); | |
1343 | ||
1344 | /* For every possible combination */ | |
1345 | for (m = 0; m < NCHCAP_COMBOS; m++) | |
1346 | { | |
1347 | /* Check each capab */ | |
1348 | for (c = y = n = 0; c < NCHCAPS; c++) | |
1349 | { | |
1350 | if((m & (1 << c)) == 0) | |
1351 | n |= channel_capabs[c]; | |
1352 | else | |
1353 | y |= channel_capabs[c]; | |
1354 | } | |
1355 | chcap_combos[m].cap_yes = y; | |
1356 | chcap_combos[m].cap_no = n; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | /* void set_chcap_usage_counts(struct Client *serv_p) | |
1361 | * Input: serv_p; The client whose capabs to register. | |
1362 | * Output: none | |
1363 | * Side-effects: Increments the usage counts for the correct capab | |
1364 | * combination. | |
1365 | */ | |
1366 | void | |
1367 | set_chcap_usage_counts(struct Client *serv_p) | |
1368 | { | |
1369 | int n; | |
1370 | ||
1371 | for (n = 0; n < NCHCAP_COMBOS; n++) | |
1372 | { | |
1373 | if(IsCapable(serv_p, chcap_combos[n].cap_yes) && | |
1374 | NotCapable(serv_p, chcap_combos[n].cap_no)) | |
1375 | { | |
1376 | chcap_combos[n].count++; | |
1377 | return; | |
1378 | } | |
1379 | } | |
1380 | ||
1381 | /* This should be impossible -A1kmm. */ | |
1382 | s_assert(0); | |
1383 | } | |
1384 | ||
1385 | /* void set_chcap_usage_counts(struct Client *serv_p) | |
1386 | * | |
1387 | * Inputs - serv_p; The client whose capabs to register. | |
1388 | * Output - none | |
1389 | * Side-effects - Decrements the usage counts for the correct capab | |
1390 | * combination. | |
1391 | */ | |
1392 | void | |
1393 | unset_chcap_usage_counts(struct Client *serv_p) | |
1394 | { | |
1395 | int n; | |
1396 | ||
1397 | for (n = 0; n < NCHCAP_COMBOS; n++) | |
1398 | { | |
1399 | if(IsCapable(serv_p, chcap_combos[n].cap_yes) && | |
1400 | NotCapable(serv_p, chcap_combos[n].cap_no)) | |
1401 | { | |
1402 | /* Hopefully capabs can't change dynamically or anything... */ | |
1403 | s_assert(chcap_combos[n].count > 0); | |
1404 | ||
1405 | if(chcap_combos[n].count > 0) | |
1406 | chcap_combos[n].count--; | |
1407 | return; | |
1408 | } | |
1409 | } | |
1410 | ||
1411 | /* This should be impossible -A1kmm. */ | |
1412 | s_assert(0); | |
1413 | } | |
1414 | ||
1415 | /* void send_cap_mode_changes(struct Client *client_p, | |
1416 | * struct Client *source_p, | |
1417 | * struct Channel *chptr, int cap, int nocap) | |
1418 | * Input: The client sending(client_p), the source client(source_p), | |
1419 | * the channel to send mode changes for(chptr) | |
1420 | * Output: None. | |
1421 | * Side-effects: Sends the appropriate mode changes to capable servers. | |
1422 | * | |
1423 | * Reverted back to my original design, except that we now keep a count | |
1424 | * of the number of servers which each combination as an optimisation, so | |
1425 | * the capabs combinations which are not needed are not worked out. -A1kmm | |
1426 | */ | |
1427 | void | |
1428 | send_cap_mode_changes(struct Client *client_p, struct Client *source_p, | |
1429 | struct Channel *chptr, struct ChModeChange mode_changes[], int mode_count) | |
1430 | { | |
1431 | static char modebuf[BUFSIZE]; | |
1432 | static char parabuf[BUFSIZE]; | |
1433 | int i, mbl, pbl, nc, mc, preflen, len; | |
1434 | char *pbuf; | |
1435 | const char *arg; | |
1436 | int dir; | |
1437 | int j; | |
1438 | int cap; | |
1439 | int nocap; | |
1440 | int arglen; | |
1441 | ||
1442 | /* Now send to servers... */ | |
1443 | for (j = 0; j < NCHCAP_COMBOS; j++) | |
1444 | { | |
1445 | if(chcap_combos[j].count == 0) | |
1446 | continue; | |
1447 | ||
1448 | mc = 0; | |
1449 | nc = 0; | |
1450 | pbl = 0; | |
1451 | parabuf[0] = 0; | |
1452 | pbuf = parabuf; | |
1453 | dir = MODE_QUERY; | |
1454 | ||
1455 | cap = chcap_combos[j].cap_yes; | |
1456 | nocap = chcap_combos[j].cap_no; | |
1457 | ||
9f9b4d7b WP |
1458 | mbl = preflen = rb_sprintf(modebuf, ":%s TMODE %ld %s ", |
1459 | use_id(source_p), (long) chptr->channelts, | |
1460 | chptr->chname); | |
212380e3 | 1461 | |
1462 | /* loop the list of - modes we have */ | |
1463 | for (i = 0; i < mode_count; i++) | |
1464 | { | |
1465 | /* if they dont support the cap we need, or they do support a cap they | |
1466 | * cant have, then dont add it to the modebuf.. that way they wont see | |
1467 | * the mode | |
1468 | */ | |
1469 | if((mode_changes[i].letter == 0) || | |
1470 | ((cap & mode_changes[i].caps) != mode_changes[i].caps) | |
1471 | || ((nocap & mode_changes[i].nocaps) != mode_changes[i].nocaps)) | |
1472 | continue; | |
1473 | ||
7592f950 JT |
1474 | if(!EmptyString(mode_changes[i].id)) |
1475 | arg = mode_changes[i].id; | |
1476 | else | |
1477 | arg = mode_changes[i].arg; | |
212380e3 | 1478 | |
1479 | if(arg) | |
1480 | { | |
1481 | arglen = strlen(arg); | |
1482 | ||
1483 | /* dont even think about it! --fl */ | |
1484 | if(arglen > MODEBUFLEN - 5) | |
1485 | continue; | |
1486 | } | |
1487 | ||
1488 | /* if we're creeping past the buf size, we need to send it and make | |
1489 | * another line for the other modes | |
1490 | * XXX - this could give away server topology with uids being | |
1491 | * different lengths, but not much we can do, except possibly break | |
1492 | * them as if they were the longest of the nick or uid at all times, | |
1493 | * which even then won't work as we don't always know the uid -A1kmm. | |
1494 | */ | |
1495 | if(arg && ((mc == MAXMODEPARAMSSERV) || | |
1496 | ((mbl + pbl + arglen + 4) > (BUFSIZE - 3)))) | |
1497 | { | |
1498 | if(nc != 0) | |
1499 | sendto_server(client_p, chptr, cap, nocap, | |
1500 | "%s %s", modebuf, parabuf); | |
1501 | nc = 0; | |
1502 | mc = 0; | |
1503 | ||
1504 | mbl = preflen; | |
1505 | pbl = 0; | |
1506 | pbuf = parabuf; | |
1507 | parabuf[0] = 0; | |
1508 | dir = MODE_QUERY; | |
1509 | } | |
1510 | ||
1511 | if(dir != mode_changes[i].dir) | |
1512 | { | |
1513 | modebuf[mbl++] = (mode_changes[i].dir == MODE_ADD) ? '+' : '-'; | |
1514 | dir = mode_changes[i].dir; | |
1515 | } | |
1516 | ||
1517 | modebuf[mbl++] = mode_changes[i].letter; | |
1518 | modebuf[mbl] = 0; | |
1519 | nc++; | |
1520 | ||
1521 | if(arg != NULL) | |
1522 | { | |
38e6acdd | 1523 | len = rb_sprintf(pbuf, "%s ", arg); |
212380e3 | 1524 | pbuf += len; |
1525 | pbl += len; | |
1526 | mc++; | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | if(pbl && parabuf[pbl - 1] == ' ') | |
1531 | parabuf[pbl - 1] = 0; | |
1532 | ||
1533 | if(nc != 0) | |
1534 | sendto_server(client_p, chptr, cap, nocap, "%s %s", modebuf, parabuf); | |
1535 | } | |
1536 | } | |
080bb5cf JH |
1537 | |
1538 | /* Check what we will forward to, without sending any notices to the user | |
1539 | * -- jilles | |
1540 | */ | |
1541 | struct Channel * | |
1542 | check_forward(struct Client *source_p, struct Channel *chptr, | |
1543 | char *key) | |
1544 | { | |
1545 | int depth = 0, i; | |
1546 | ||
1547 | /* User is +Q */ | |
1548 | if (IsNoForward(source_p)) | |
1549 | return NULL; | |
1550 | ||
1551 | while (depth < 16) | |
1552 | { | |
1553 | chptr = find_channel(chptr->mode.forward); | |
1554 | /* Can only forward to existing channels */ | |
1555 | if (chptr == NULL) | |
1556 | return NULL; | |
1557 | /* Already on there, show original error message */ | |
1558 | if (IsMember(source_p, chptr)) | |
1559 | return NULL; | |
1560 | /* Juped. Sending a warning notice would be unfair */ | |
1561 | if (hash_find_resv(chptr->chname)) | |
1562 | return NULL; | |
1563 | /* Don't forward to +Q channel */ | |
1564 | if (chptr->mode.mode & MODE_DISFORWARD) | |
1565 | return NULL; | |
1566 | i = can_join(source_p, chptr, key); | |
1567 | if (i == 0) | |
1568 | return chptr; | |
1569 | if (i != ERR_INVITEONLYCHAN && i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_CHANNELISFULL) | |
1570 | return NULL; | |
1571 | depth++; | |
1572 | } | |
1573 | ||
1574 | return NULL; | |
1575 | } | |
67b90240 | 1576 | |
9230426e JH |
1577 | /* |
1578 | * do_join_0 | |
1579 | * | |
1580 | * inputs - pointer to client doing join 0 | |
1581 | * output - NONE | |
1582 | * side effects - Use has decided to join 0. This is legacy | |
1583 | * from the days when channels were numbers not names. *sigh* | |
9230426e JH |
1584 | */ |
1585 | void | |
1586 | do_join_0(struct Client *client_p, struct Client *source_p) | |
1587 | { | |
1588 | struct membership *msptr; | |
1589 | struct Channel *chptr = NULL; | |
1590 | rb_dlink_node *ptr; | |
1591 | ||
1592 | /* Finish the flood grace period... */ | |
1593 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
1594 | flood_endgrace(source_p); | |
1595 | ||
1596 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s JOIN 0", use_id(source_p)); | |
1597 | ||
aa35afbb JH |
1598 | while((ptr = source_p->user->channel.head)) |
1599 | { | |
9230426e JH |
1600 | if(source_p->user->channel.head && MyConnect(source_p) && |
1601 | !IsOper(source_p) && !IsExemptSpambot(source_p)) | |
1602 | check_spambot_warning(source_p, NULL); | |
1603 | ||
9230426e JH |
1604 | msptr = ptr->data; |
1605 | chptr = msptr->chptr; | |
1606 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s", | |
1607 | source_p->name, | |
1608 | source_p->username, source_p->host, chptr->chname); | |
1609 | remove_user_from_channel(msptr); | |
1610 | } | |
1611 | } | |
1612 | ||
1613 | int | |
1614 | check_channel_name_loc(struct Client *source_p, const char *name) | |
1615 | { | |
aa35afbb JH |
1616 | const char *p; |
1617 | ||
9230426e JH |
1618 | s_assert(name != NULL); |
1619 | if(EmptyString(name)) | |
1620 | return 0; | |
1621 | ||
1622 | if(ConfigFileEntry.disable_fake_channels && !IsOper(source_p)) | |
1623 | { | |
aa35afbb | 1624 | for(p = name; *p; ++p) |
9230426e | 1625 | { |
aa35afbb | 1626 | if(!IsChanChar(*p) || IsFakeChanChar(*p)) |
9230426e JH |
1627 | return 0; |
1628 | } | |
1629 | } | |
1630 | else | |
1631 | { | |
aa35afbb | 1632 | for(p = name; *p; ++p) |
9230426e | 1633 | { |
aa35afbb | 1634 | if(!IsChanChar(*p)) |
9230426e JH |
1635 | return 0; |
1636 | } | |
1637 | } | |
1638 | ||
aa35afbb JH |
1639 | if(ConfigChannel.only_ascii_channels) |
1640 | { | |
1641 | for(p = name; *p; ++p) | |
1642 | if(*p < 33 || *p > 126) | |
1643 | return 0; | |
1644 | } | |
1645 | ||
1646 | ||
9230426e JH |
1647 | return 1; |
1648 | } | |
1649 | ||
824455ab | 1650 | void user_join(struct Client * client_p, struct Client * source_p, const char * channels, const char * keys) |
67b90240 JH |
1651 | { |
1652 | static char jbuf[BUFSIZE]; | |
1653 | struct Channel *chptr = NULL; | |
1654 | struct ConfItem *aconf; | |
1655 | char *name; | |
1656 | char *key = NULL; | |
1657 | const char *modes; | |
1658 | int i, flags = 0; | |
1659 | char *p = NULL, *p2 = NULL; | |
1660 | char *chanlist; | |
1661 | char *mykey; | |
67b90240 JH |
1662 | |
1663 | jbuf[0] = '\0'; | |
1664 | ||
1665 | if(channels == NULL) | |
1666 | return; | |
1667 | ||
1668 | /* rebuild the list of channels theyre supposed to be joining. | |
1669 | * this code has a side effect of losing keys, but.. | |
1670 | */ | |
1671 | chanlist = LOCAL_COPY(channels); | |
1672 | for(name = rb_strtok_r(chanlist, ",", &p); name; name = rb_strtok_r(NULL, ",", &p)) | |
1673 | { | |
1674 | /* check the length and name of channel is ok */ | |
1675 | if(!check_channel_name_loc(source_p, name) || (strlen(name) > LOC_CHANNELLEN)) | |
1676 | { | |
1677 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
1678 | form_str(ERR_BADCHANNAME), (unsigned char *) name); | |
1679 | continue; | |
1680 | } | |
1681 | ||
1682 | /* join 0 parts all channels */ | |
1683 | if(*name == '0' && (name[1] == ',' || name[1] == '\0') && name == chanlist) | |
1684 | { | |
1685 | (void) strcpy(jbuf, "0"); | |
1686 | continue; | |
1687 | } | |
1688 | ||
1689 | /* check it begins with # or &, and local chans are disabled */ | |
0eceaff1 G |
1690 | else if(!IsChannelName(name) || |
1691 | ( !ConfigChannel.use_local_channels && name[0] == '&')) | |
67b90240 JH |
1692 | { |
1693 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
1694 | form_str(ERR_NOSUCHCHANNEL), name); | |
1695 | continue; | |
1696 | } | |
1697 | ||
1698 | /* see if its resv'd */ | |
1699 | if(!IsExemptResv(source_p) && (aconf = hash_find_resv(name))) | |
1700 | { | |
1701 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
1702 | form_str(ERR_BADCHANNAME), name); | |
1703 | ||
1704 | /* dont warn for opers */ | |
1705 | if(!IsExemptJupe(source_p) && !IsOper(source_p)) | |
1706 | sendto_realops_snomask(SNO_SPY, L_NETWIDE, | |
1707 | "User %s (%s@%s) is attempting to join locally juped channel %s (%s)", | |
1708 | source_p->name, source_p->username, | |
1709 | source_p->orighost, name, aconf->passwd); | |
1710 | /* dont update tracking for jupe exempt users, these | |
1711 | * are likely to be spamtrap leaves | |
1712 | */ | |
1713 | else if(IsExemptJupe(source_p)) | |
1714 | aconf->port--; | |
1715 | ||
1716 | continue; | |
1717 | } | |
1718 | ||
1719 | if(splitmode && !IsOper(source_p) && (*name != '&') && | |
1720 | ConfigChannel.no_join_on_split) | |
1721 | { | |
1722 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1723 | me.name, source_p->name, name); | |
1724 | continue; | |
1725 | } | |
1726 | ||
1727 | if(*jbuf) | |
1728 | (void) strcat(jbuf, ","); | |
1729 | (void) rb_strlcat(jbuf, name, sizeof(jbuf)); | |
1730 | } | |
1731 | ||
1732 | if(keys != NULL) | |
1733 | { | |
1734 | mykey = LOCAL_COPY(keys); | |
1735 | key = rb_strtok_r(mykey, ",", &p2); | |
1736 | } | |
1737 | ||
1738 | for(name = rb_strtok_r(jbuf, ",", &p); name; | |
1739 | key = (key) ? rb_strtok_r(NULL, ",", &p2) : NULL, name = rb_strtok_r(NULL, ",", &p)) | |
1740 | { | |
1741 | hook_data_channel_activity hook_info; | |
1742 | ||
1743 | /* JOIN 0 simply parts all channels the user is in */ | |
1744 | if(*name == '0' && !atoi(name)) | |
1745 | { | |
1746 | if(source_p->user->channel.head == NULL) | |
1747 | continue; | |
1748 | ||
1749 | do_join_0(&me, source_p); | |
1750 | continue; | |
1751 | } | |
1752 | ||
1753 | /* look for the channel */ | |
1754 | if((chptr = find_channel(name)) != NULL) | |
1755 | { | |
1756 | if(IsMember(source_p, chptr)) | |
1757 | continue; | |
1758 | ||
1759 | flags = 0; | |
1760 | } | |
1761 | else | |
1762 | { | |
1763 | hook_data_client_approval moduledata; | |
1764 | ||
1765 | moduledata.client = source_p; | |
1766 | moduledata.approved = 0; | |
1767 | ||
1768 | call_hook(h_can_create_channel, &moduledata); | |
1769 | ||
1770 | if(moduledata.approved != 0) | |
1771 | { | |
1772 | sendto_one(source_p, form_str(moduledata.approved), | |
1773 | me.name, source_p->name, name); | |
1774 | continue; | |
1775 | } | |
1776 | ||
1777 | if(splitmode && !IsOper(source_p) && (*name != '&') && | |
1778 | ConfigChannel.no_create_on_split) | |
1779 | { | |
1780 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1781 | me.name, source_p->name, name); | |
1782 | continue; | |
1783 | } | |
1784 | ||
1785 | flags = CHFL_CHANOP; | |
1786 | } | |
1787 | ||
1788 | if((rb_dlink_list_length(&source_p->user->channel) >= | |
1789 | (unsigned long) ConfigChannel.max_chans_per_user) && | |
1790 | (!IsOper(source_p) || | |
1791 | (rb_dlink_list_length(&source_p->user->channel) >= | |
1792 | (unsigned long) ConfigChannel.max_chans_per_user * 3))) | |
1793 | { | |
1794 | sendto_one(source_p, form_str(ERR_TOOMANYCHANNELS), | |
1795 | me.name, source_p->name, name); | |
67b90240 JH |
1796 | return; |
1797 | } | |
1798 | ||
67b90240 JH |
1799 | if(chptr == NULL) /* If I already have a chptr, no point doing this */ |
1800 | { | |
1801 | chptr = get_or_create_channel(source_p, name, NULL); | |
1802 | ||
1803 | if(chptr == NULL) | |
1804 | { | |
1805 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1806 | me.name, source_p->name, name); | |
67b90240 JH |
1807 | continue; |
1808 | } | |
1809 | } | |
1810 | ||
67b90240 JH |
1811 | /* can_join checks for +i key, bans etc */ |
1812 | if((i = can_join(source_p, chptr, key))) | |
1813 | { | |
1814 | if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) || | |
1815 | (!ConfigChannel.use_forward || (chptr = check_forward(source_p, chptr, key)) == NULL)) | |
1816 | { | |
1817 | /* might be wrong, but is there any other better location for such? | |
1818 | * see extensions/chm_operonly.c for other comments on this | |
1819 | * -- dwr | |
1820 | */ | |
1821 | if(i != ERR_CUSTOM) | |
1822 | sendto_one(source_p, form_str(i), me.name, source_p->name, name); | |
1823 | ||
67b90240 JH |
1824 | continue; |
1825 | } | |
1826 | ||
1827 | sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname); | |
1828 | } | |
aa35afbb JH |
1829 | |
1830 | if(flags == 0 && | |
1831 | !IsOper(source_p) && !IsExemptSpambot(source_p)) | |
1832 | check_spambot_warning(source_p, name); | |
67b90240 JH |
1833 | |
1834 | /* add the user to the channel */ | |
1835 | add_user_to_channel(chptr, source_p, flags); | |
1836 | if (chptr->mode.join_num && | |
1837 | rb_current_time() - chptr->join_delta >= chptr->mode.join_time) | |
1838 | { | |
1839 | chptr->join_count = 0; | |
1840 | chptr->join_delta = rb_current_time(); | |
1841 | } | |
1842 | chptr->join_count++; | |
1843 | ||
1844 | /* we send the user their join here, because we could have to | |
1845 | * send a mode out next. | |
1846 | */ | |
1847 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", | |
1848 | source_p->name, | |
1849 | source_p->username, source_p->host, chptr->chname); | |
1850 | ||
1851 | /* its a new channel, set +nt and burst. */ | |
1852 | if(flags & CHFL_CHANOP) | |
1853 | { | |
1854 | chptr->channelts = rb_current_time(); | |
13ec57db JH |
1855 | |
1856 | /* autochanmodes stuff */ | |
1857 | if(ConfigChannel.autochanmodes) | |
1858 | { | |
1859 | char * ch; | |
1860 | for(ch = ConfigChannel.autochanmodes; *ch; *ch++) | |
1861 | { | |
1862 | chptr->mode.mode |= chmode_table[*ch].mode_type; | |
1863 | } | |
1864 | } | |
1865 | else | |
1866 | { | |
1867 | chptr->mode.mode |= MODE_TOPICLIMIT; | |
1868 | chptr->mode.mode |= MODE_NOPRIVMSGS; | |
1869 | } | |
1870 | ||
67b90240 JH |
1871 | modes = channel_modes(chptr, &me); |
1872 | ||
1873 | sendto_channel_local(ONLY_CHANOPS, chptr, ":%s MODE %s %s", | |
1874 | me.name, chptr->chname, modes); | |
1875 | ||
1876 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
1877 | ":%s SJOIN %ld %s %s :@%s", | |
1878 | me.id, (long) chptr->channelts, | |
1879 | chptr->chname, modes, source_p->id); | |
1880 | } | |
1881 | else | |
1882 | { | |
1883 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
1884 | ":%s JOIN %ld %s +", | |
1885 | use_id(source_p), (long) chptr->channelts, | |
1886 | chptr->chname); | |
1887 | } | |
1888 | ||
1889 | del_invite(chptr, source_p); | |
1890 | ||
1891 | if(chptr->topic != NULL) | |
1892 | { | |
1893 | sendto_one(source_p, form_str(RPL_TOPIC), me.name, | |
1894 | source_p->name, chptr->chname, chptr->topic); | |
1895 | ||
1896 | sendto_one(source_p, form_str(RPL_TOPICWHOTIME), | |
1897 | me.name, source_p->name, chptr->chname, | |
1898 | chptr->topic_info, chptr->topic_time); | |
1899 | } | |
1900 | ||
1901 | channel_member_names(chptr, source_p, 1); | |
1902 | ||
67b90240 JH |
1903 | hook_info.client = source_p; |
1904 | hook_info.chptr = chptr; | |
1905 | hook_info.key = key; | |
1906 | call_hook(h_channel_join, &hook_info); | |
1907 | } | |
1908 | ||
1909 | return; | |
1910 | } | |
6f659342 G |
1911 | |
1912 | /* | |
1913 | * channel_metadata_add | |
1914 | * | |
1915 | * inputs - pointer to channel struct | |
1916 | * - name of metadata item you wish to add | |
1917 | * - value of metadata item | |
1918 | * - 1 if metadata should be propegated, 0 if not | |
1919 | * output - none | |
1920 | * side effects - metadata is added to the channel in question | |
1921 | * - metadata is propegated if propegate is set. | |
1922 | */ | |
1923 | struct Metadata * | |
1924 | channel_metadata_add(struct Channel *target, const char *name, const char *value, int propegate) | |
1925 | { | |
0b370fcc | 1926 | struct Metadata *md; |
6f659342 | 1927 | |
6f659342 G |
1928 | md = rb_malloc(sizeof(struct Metadata)); |
1929 | md->name = rb_strdup(name); | |
1930 | md->value = rb_strdup(value); | |
1931 | ||
0b370fcc | 1932 | irc_dictionary_add(target->metadata, md->name, md); |
6f659342 G |
1933 | |
1934 | if(propegate) | |
1935 | sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA ADD %s %s :%s", | |
1936 | target->chname, name, value); | |
1937 | ||
1938 | return md; | |
1939 | } | |
1940 | ||
104becbf G |
1941 | /* |
1942 | * channel_metadata_time_add | |
1943 | * | |
1944 | * inputs - pointer to channel struct | |
1945 | * - name of metadata item you wish to add | |
1946 | * - time_t you wish to add | |
6a97cac6 | 1947 | * - value you wish to add |
104becbf G |
1948 | * output - none |
1949 | * side effects - metadata is added to the channel in question | |
1950 | */ | |
1951 | struct Metadata * | |
6a97cac6 | 1952 | channel_metadata_time_add(struct Channel *target, const char *name, time_t timevalue, const char *value) |
104becbf | 1953 | { |
0b370fcc | 1954 | struct Metadata *md; |
104becbf | 1955 | |
0b370fcc | 1956 | md = rb_malloc(sizeof(struct Metadata)); |
104becbf | 1957 | md->name = rb_strdup(name); |
6a97cac6 G |
1958 | md->value = rb_strdup(value); |
1959 | md->timevalue = timevalue; | |
104becbf | 1960 | |
0b370fcc | 1961 | irc_dictionary_add(target->metadata, md->name, md); |
104becbf G |
1962 | |
1963 | return md; | |
1964 | } | |
1965 | ||
6f659342 G |
1966 | /* |
1967 | * channel_metadata_delete | |
1968 | * | |
1969 | * inputs - pointer to channel struct | |
1970 | * - name of metadata item you wish to delete | |
1971 | * output - none | |
1972 | * side effects - metadata is deleted from the channel in question | |
1973 | * - deletion is propegated if propegate is set | |
1974 | */ | |
1975 | void | |
1976 | channel_metadata_delete(struct Channel *target, const char *name, int propegate) | |
1977 | { | |
0b370fcc | 1978 | struct Metadata *md = channel_metadata_find(target, name); |
6f659342 G |
1979 | |
1980 | if(!md) | |
1981 | return; | |
1982 | ||
0b370fcc | 1983 | irc_dictionary_delete(target->metadata, md->name); |
6f659342 G |
1984 | |
1985 | rb_free(md); | |
1986 | ||
1987 | if(propegate) | |
1988 | sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA DELETE %s %s", | |
1989 | target->chname, name); | |
1990 | } | |
1991 | ||
1992 | /* | |
1993 | * channel_metadata_find | |
1994 | * | |
1995 | * inputs - pointer to channel struct | |
1996 | * - name of metadata item you wish to read | |
1997 | * output - the requested metadata, if it exists, elsewise null. | |
1998 | * side effects - | |
1999 | */ | |
2000 | struct Metadata * | |
2001 | channel_metadata_find(struct Channel *target, const char *name) | |
2002 | { | |
2003 | if(!target) | |
2004 | return NULL; | |
2005 | ||
0b370fcc | 2006 | if(!target->metadata) |
6f659342 G |
2007 | return NULL; |
2008 | ||
0b370fcc | 2009 | return irc_dictionary_retrieve(target->metadata, name); |
6f659342 | 2010 | } |
8bced6dc G |
2011 | |
2012 | /* | |
2013 | * channel_metadata_clear | |
2014 | * | |
2015 | * inputs - pointer to channel struct | |
2016 | * output - none | |
2017 | * side effects - metadata is cleared from the channel in question | |
2018 | */ | |
2019 | void | |
2020 | channel_metadata_clear(struct Channel *chptr) | |
2021 | { | |
2022 | struct Metadata *md; | |
2023 | struct DictionaryIter iter; | |
2024 | ||
0b370fcc | 2025 | DICTIONARY_FOREACH(md, &iter, chptr->metadata) |
8bced6dc G |
2026 | { |
2027 | channel_metadata_delete(chptr, md->name, 0); | |
2028 | } | |
2029 | } |